Get Classification

Retrieve a single Nice classification with its full term list

GET /v1/classifications/{class_number}

Get Classification

cURL

curl --request GET \
  --url https://api.signa.so/v1/classifications/{class_number} \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.signa.so/v1/classifications/{class_number}"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.signa.so/v1/classifications/{class_number}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.signa.so/v1/classifications/{class_number}",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api.signa.so/v1/classifications/{class_number}"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://api.signa.so/v1/classifications/{class_number}")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.signa.so/v1/classifications/{class_number}")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "class_number": 25,
  "object": "classification",
  "title": "Clothing, footwear, headwear",
  "description": "Clothing, footwear, headwear",
  "category": "goods",
  "terms": ["footwear*", "sports shoes", "sandals", "hats"]
}

Overview

Returns a single Nice classification (1-45) with its title, description, category (goods or services), and the canonical list of terms registered to that class.

Path Parameters

class_number · integer · required

Nice class number (1-45).

Response

This endpoint is publicly cacheable, so the response never includes request_id.

class_number · integer

Nice class number.

object · string

Always classification.

title · string

Class title.

description · string

Class description.

category · string

goods or services.

terms · string[]

Canonical term list.

{
  "class_number": 25,
  "object": "classification",
  "title": "Clothing, footwear, headwear",
  "description": "Clothing, footwear, headwear",
  "category": "goods",
  "terms": ["footwear*", "sports shoes", "sandals", "hats"]
}

Code Examples

cURL

curl "https://api.signa.so/v1/classifications/25" \
  -H "Authorization: Bearer sig_YOUR_KEY"

import { Signa } from "@signa-so/sdk";

const signa = new Signa({ api_key: process.env.SIGNA_API_KEY });

const cls = await signa.references.classification(25);

Errors

Status	Type	Description
400	validation_error	Class number outside 1-45
401	unauthorized	Missing or invalid API key
403	forbidden	API key lacks trademarks:read scope
404	not_found	Class not loaded in reference data

Related Endpoints

• List Classifications
• List Goods & Services, browse and search the pre-approved terms catalog
• Suggest Classifications, AI-assisted class suggestion (classes only)
• Suggest Goods & Services, classes with filing-ready wording per class